Microphone



FIG. 1 is a perspective view of a microphone showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a plan view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a right view thereof; the left view thereof being a mirror image.

The broken lines shown in the figures depict portions of the microphone that form no part of the claimed design. 

CLAIM The ornamental design for a microphone, as shown and described. 